/// <summary>
/// The assert only image and image size.
/// </summary>
/// <param name="reader">
/// The reader.
/// </param>
/// <param name="pageNum">
/// The page number.
/// </param>
/// <param name="width">
/// The width.
/// </param>
/// <param name="height">
/// The height.
/// </param>
private static void AssertOnlyImageAndImageSize(PdfReader reader, int pageNum, int width, int height)
{
PdfDictionary page = reader.GetPageNRelease(pageNum);
PdfDictionary resources = page.GetAsDict(PdfName.RESOURCES);
PdfDictionary dictionary = resources.GetAsDict(PdfName.XOBJECT);
Assert.AreEqual(1, dictionary.Keys.Count);
dictionary.GetEnumerator().MoveNext();
Dictionary <PdfName, PdfObject> .Enumerator e = dictionary.GetEnumerator();
e.MoveNext();
PdfName key = e.Current.Key;
PdfStream str = dictionary.GetAsStream(key);
Assert.AreEqual(width, str.GetAsNumber(PdfName.WIDTH).IntValue);
Assert.AreEqual(height, str.GetAsNumber(PdfName.HEIGHT).IntValue);
}